Radeon R7 M270DX vs Radeon R9 M390X
If you are going to buy a new graphics card and are choosing between Radeon R7 M270DX and Radeon R9 M390X, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Radeon R7 M270DX stacks up against Radeon R9 M390X, check out specs charts below.
Radeon R7 M270DX
Radeon R9 M390X is a Laptop Graphics Card
Note: Radeon R9 M390X is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Radeon R9 M390X here:
Main Specs
| Radeon R7 M270DX | Radeon R9 M390X | |
| Power consumption (TDP) | 100 Watt | |
| Interface | IGP | PCIe 3.0 x16 |
| Supplementary power connectors | None | |
| Memory type | System Shared | GDDR5 |
| Maximum RAM amount | 4 GB | |
| Display Connectors | No outputs | No outputs |
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- Radeon R7 M270DX is connected by IGP, and Radeon R9 M390X uses PCIe 3.0 x16 interface.
- Radeon R7 M270DX is used in Desktops, and Radeon R9 M390X - in Laptops.
- Radeon R7 M270DX is build with GCN 3.0 architecture, and Radeon R9 M390X - with GCN 3.
- Core clock speed of Radeon R7 M270DX is 177 MHz higher, than Radeon R9 M390X.
- Radeon R7 M270DX and Radeon R9 M390X are manufactured by 28 nm process technology.
Game benchmarks
| high / 1080p | 2−3 | 21−24 |
| ultra / 1080p | 0−1 | 12−14 |
| QHD / 1440p | 0−1 | 8−9 |
| 4K / 2160p | − | 5−6 |
| low / 720p | 12−14 | 40−45 |
| medium / 1080p | 3−4 | 27−30 |
| The average gaming FPS of Radeon R9 M390X in Assassin's Creed Odyssey is 416% more, than Radeon R7 M270DX. | ||
| high / 1080p | − | 35−40 |
| ultra / 1080p | 4−5 | 30−35 |
| QHD / 1440p | 0−1 | 14−16 |
| 4K / 2160p | − | 9−10 |
| low / 720p | 14−16 | 70−75 |
| medium / 1080p | 5−6 | 40−45 |
| The average gaming FPS of Radeon R9 M390X in Battlefield 5 is 512% more, than Radeon R7 M270DX. | ||
| low / 768p | 50−55 | 50−55 |
| high / 1080p | 40−45 | − |
| QHD / 1440p | 0−1 | 0−1 |
| Radeon R7 M270DX and Radeon R9 M390X have the same average FPS in Call of Duty: Warzone. | ||
| low / 768p | 120−130 | 230−240 |
| medium / 768p | 90−95 | 210−220 |
| ultra / 1080p | 35−40 | 120−130 |
| QHD / 1440p | 21−24 | 100−110 |
| 4K / 2160p | 16−18 | 55−60 |
| high / 768p | 60−65 | 170−180 |
| The average gaming FPS of Radeon R9 M390X in Counter-Strike: Global Offensive is 157% more, than Radeon R7 M270DX. | ||
| low / 768p | 65−70 | 60−65 |
| ultra / 1080p | 18−20 | 55−60 |
| medium / 1080p | 45−50 | 55−60 |
| The average gaming FPS of Radeon R9 M390X in Cyberpunk 2077 is 34% more, than Radeon R7 M270DX. | ||
| low / 768p | 75−80 | 120−130 |
| medium / 768p | 45−50 | 110−120 |
| ultra / 1080p | 20−22 | 85−90 |
| The average gaming FPS of Radeon R9 M390X in Dota 2 is 127% more, than Radeon R7 M270DX. | ||
| high / 1080p | 2−3 | 27−30 |
| ultra / 1080p | 2−3 | 24−27 |
| QHD / 1440p | − | 20−22 |
| 4K / 2160p | 2−3 | 9−10 |
| low / 720p | 10−11 | 55−60 |
| medium / 1080p | 3−4 | 30−33 |
| The average gaming FPS of Radeon R9 M390X in Far Cry 5 is 650% more, than Radeon R7 M270DX. | ||
| high / 1080p | − | 35−40 |
| ultra / 1080p | 5−6 | 27−30 |
| QHD / 1440p | 3−4 | 16−18 |
| low / 720p | 50−55 | 130−140 |
| medium / 1080p | 10−11 | 75−80 |
| The average gaming FPS of Radeon R9 M390X in Fortnite is 255% more, than Radeon R7 M270DX. | ||
| high / 1080p | 5−6 | 35−40 |
| ultra / 1080p | − | 27−30 |
| QHD / 1440p | 3−4 | 16−18 |
| 4K / 2160p | 2−3 | 14−16 |
| low / 720p | 16−18 | 75−80 |
| medium / 1080p | 7−8 | 40−45 |
| The average gaming FPS of Radeon R9 M390X in Forza Horizon 4 is 428% more, than Radeon R7 M270DX. | ||
| low / 768p | 40−45 | 110−120 |
| medium / 768p | − | 95−100 |
| high / 1080p | 3−4 | 45−50 |
| ultra / 1080p | 2−3 | 18−20 |
| QHD / 1440p | 0−1 | 9−10 |
| medium / 720p | 35−40 | − |
| The average gaming FPS of Radeon R9 M390X in Grand Theft Auto V is 275% more, than Radeon R7 M270DX. | ||
| high / 1080p | 1−2 | 14−16 |
| ultra / 1080p | 0−1 | 10−12 |
| QHD / 1440p | − | 10−12 |
| 4K / 2160p | 0−1 | 3−4 |
| low / 720p | 4−5 | 40−45 |
| medium / 1080p | 3−4 | 20−22 |
| The average gaming FPS of Radeon R9 M390X in Metro Exodus is 766% more, than Radeon R7 M270DX. | ||
| low / 768p | 90−95 | 120−130 |
| high / 1080p | 80−85 | − |
| ultra / 1080p | 70−75 | − |
| medium / 1080p | 85−90 | 110−120 |
| The average gaming FPS of Radeon R9 M390X in Minecraft is 33% more, than Radeon R7 M270DX. | ||
| ultra / 1080p | 12−14 | 14−16 |
| low / 720p | 27−30 | 75−80 |
| medium / 1080p | 14−16 | 18−20 |
| The average gaming FPS of Radeon R9 M390X in PLAYERUNKNOWN'S BATTLEGROUNDS is 105% more, than Radeon R7 M270DX. | ||
| high / 1080p | − | 16−18 |
| ultra / 1080p | − | 10−12 |
| QHD / 1440p | − | 3−4 |
| 4K / 2160p | − | 2−3 |
| low / 720p | 6−7 | 40−45 |
| medium / 1080p | − | 21−24 |
| The average gaming FPS of Radeon R9 M390X in Red Dead Redemption 2 is 600% more, than Radeon R7 M270DX. | ||
| low / 768p | 9−10 | 80−85 |
| medium / 768p | 7−8 | 50−55 |
| high / 1080p | 4−5 | 27−30 |
| ultra / 1080p | 3−4 | 16−18 |
| 4K / 2160p | 1−2 | 9−10 |
| The average gaming FPS of Radeon R9 M390X in The Witcher 3: Wild Hunt is 660% more, than Radeon R7 M270DX. | ||
| low / 768p | 70−75 | 90−95 |
| medium / 768p | 35−40 | 60−65 |
| ultra / 1080p | 12−14 | 40−45 |
| high / 768p | 30−35 | 55−60 |
| The average gaming FPS of Radeon R9 M390X in World of Tanks is 65% more, than Radeon R7 M270DX. | ||
Full Specs
| Radeon R7 M270DX | Radeon R9 M390X | |
| Architecture | GCN 3.0 | GCN 3 |
| Code name | Topaz | Amethyst (XT) / Tonga |
| Type | Desktop | Laptop |
| Release date | 11 June 2014 | 9 June 2015 |
| Pipelines | 384 | 2048 |
| Core clock speed | 900 MHz | 723 MHz |
| Boost Clock | 940 MHz | |
| Transistor count | 1,550 million | 5,000 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 22.56 | 92.54 |
| Floating-point performance | 2,961 gflops | |
| Memory bus width | 256 Bit | |
| Memory bandwidth | 160.0 GB/s | |
| Shared memory | - | |
| DirectX | 12 (12_0) | |
| Shader Model | 6.3 | 6.3 |
| OpenGL | 4.6 | 4.4 |
| OpenCL | 2.0 | Not Listed |
| Vulkan | 1.2.131 | + |
| FreeSync | + | |
| Bus support | PCIe 3.0 | |
| Laptop size | large | |
| Eyefinity | + | |
| HD3D | + | |
| PowerTune | + | |
| DualGraphics | + | |
| ZeroCore | + | |
| Switchable graphics | + | |
| Mantle | + | |
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